Coach-latch



(No Model.)

W. SGHOLLHORN.

COACH LATCH.

No. 371,375. Patented Oct. 11,1887.

UNITED STATES PATENT OFFICE.

\VILLIAM SCHOLLIIORN, OF NE\V HAVEN, CONNECTICUT.

COACH-LATCH.

SPECIFICATION forming part of Letters Patent No. 371,375, dated October 11, 1687.

Application filed August 29,1887. Serial No. 248,111.

.To aZZ whom, it may concern.-

Be it known that I, \VILLIAM SCHOLLHORN, of New Haven, in the county of New Haven and State of Connecticut, have invented a new Improvement in CoaehLatches; and I do hereby declare the following, when taken in connection with accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exactdescription of the same, and which said drawings constitute part of this specification, and represent, in

Figure 1, an inside view of the latch complete; Fig. 2, a longitudinal section through the pivot; Fig. 3, a perspective view of the pivot detached.

This invention relates to an improvement in that class of coach-latches which are adapted to be operated by a lever which extends upward from the latch to a convenient point above the latch, so that by imparting a swinging movement to the lever the latch-bolt will be drawn into the ease, this class of latches being known to the trade as French latches, and is an improvement upon the latch for which Letters Patent No. 314,611 weregranted to me. In that patent the stud upon which the lever is hung is made an integral part of the case, in contradistinction to the previous method of forming the pivot, which consisted of the introduction of a screw or bolt through the case. In the use of the previous screw or bolt there was a liability of the lever unscrewing the bolt, so as to loosen the pivot. This difiicuity was overcome in my said patent; but in the use of the latch in the said patent the lever cannot be removed from the case without first taking the case from the door. the mechanism is inclosed by a covering-plate the lever cannot be removed from the pivot without first removing the covering-plate.

The object of my presentinvention is to retain the stationary or permanent character of the stud, but yet adaptit to be removed from the case without removing the covering-plate, or without the necessity of taking the latch from the door should it be desirable to remove or apply the lever after the latch is secured to the door.

To this end my invention consists in forming the stud upon a plate independent of the Again, in latches in which (X0 model.)

case, the case being constructed with an opening through which the stud. may set, and so that the stud-plate may bear upon the surface of the lock-case and be secured directly thereto, whereby it becomes a stationary stud in operation, but yet so that it may be removed as 00 casion requires.

In the illustration I show a latch in which the covering-plate Asubstantially incloses the mechanism ofthe latch. B represents the lever, which is hung upon a pivot, C, which projects inward from the back D of the case; but instead of making the stud an integral part of the back D of the case, as in my previous patent, I form it as an integral part of an independent plate, E, and then construct the back D with an opening through it, through which the stud may pass, and so as to bring the plate E flat upon the outer surface of the back D of the case, as seen in Fig. 2; then the plate E is secured to the back D of the case by one or more screws, as seen in said figure. This makes the stud permanent and firm in the case, substantially as if an integral part of it-that is, its rotation under the action of the lever is impossible; yet the stud is easily removable without disturbing the coveringplate A; or, if it be desired to detach the lever while the latch is upon the door, the stud may be removed without removing thelatch from the door. Preferably I construct the stud with a boss, a, at its base and of larger diameter than the stud, in thickness corresponding to the thickness of the back D, as seen in Fig. 2, and make a corresponding opening in the back D; but this is not essential.

I claim-- In a coach-latch, the combination of the case with a plate, E, having the pivot C .formed as an integral part thereof, the back of the case constructed with an opening corresponding to the pivot, and the pivot set through said 0pening and secured to the case by means of the said plate E, the said pivot being adapted to support the latchlever, substantially as described.

WILLIAM SOHOLLHORN.

iVitnesses:

ADoLr SOHATZ, E. FITTMAN. 

